Your complaining about a few more percent on savings over $3 million. lol. Try 30% if you are a low income earner.
To calculate your tax on interest, identify your total interest earned, determine your tax bracket, and apply the corresponding rate. For example, if you earn $50,000 salary plus $1,000 interest, you'll pay 30 cents per dollar on the interest portion as it falls within the $45,001-$135,000 bracket.